7.7
High
CVE-2026-89060 A cross-namespace authorization flaw in multicluster-observability-addon allows a user with permission to modify a…
Description
A cross-namespace authorization flaw in multicluster-observability-addon allows a user with permission to modify a managed cluster’s ManagedClusterAddOn configuration to reference ClusterLogForwarder or OpenTelemetryCollector resources outside the permitted namespace. If those resources reference Secrets, the add-on may copy the referenced Secrets to the attacker-controlled managed cluster.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Red Hat Advanced Cluster Management for Kubernetes 2 | Versions not published | |
| Red Hat Advanced Cluster Management for Kubernetes 2.13 1789126264 | earliest → < 1789126264 | 1789126264 |
| Red Hat Advanced Cluster Management for Kubernetes 2.14 1789126262 | earliest → < 1789126262 | 1789126262 |
| Red Hat Advanced Cluster Management for Kubernetes 2.15 1789126262 | earliest → < 1789126262 | 1789126262 |
| Red Hat Advanced Cluster Management for Kubernetes 2.16 1789126267 | earliest → < 1789126267 | 1789126267 |
| Red Hat Advanced Cluster Management for Kubernetes 2.17 1789126264 | earliest → < 1789126264 | 1789126264 |
References
- RHSA-2026:67539 access.redhat.com
- RHSA-2026:67540 access.redhat.com
- RHSA-2026:67541 access.redhat.com
- RHSA-2026:67542 access.redhat.com
- RHSA-2026:67543 access.redhat.com
- access.redhat.com access.redhat.com
- RHBZ#2531596 bugzilla.redhat.com
- github.com github.com
Timeline
- Published
- Last modified
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